What does the XFeed Selector control in the fuel system?

The XFeed Selector, short for crossfeed selector, is a crucial component of the fuel system in multi-engine aircraft. Its primary function is to control the direction of fuel transfer between fuel tanks. This allows for balanced fuel distribution, which is vital for maintaining aircraft stability and performance.

When pilots need to manage fuel distribution, especially if one engine/tank has more fuel than the other, the XFeed Selector can direct fuel flow from one tank to another. This is particularly important when configuring for different power settings or ensuring that both engines have adequate fuel supply during flight.

In contrast, the other options do not accurately describe the function of the XFeed Selector. It does not control fuel flow rate to the engines directly, nor does it manage fuel tank pressure or fuel temperature. Understanding the role of the XFeed Selector is essential for pilots to ensure efficient fuel management and maintain aircraft performance during flight.